WGU D115 UNIT 2 2025 EXAM QUESTIONS
AND 100% APPROVED CORRECT
ANSWERS GRADED A+ FIRST CLASS PASS
2025 EXAM
A
+
, PDF: GRADED A+ EXAM
WGU D115 UNIT 2 2025 EXAM QUESTIONS
AND 100% APPROVED CORRECT
ANSWERS GRADED A+ FIRST CLASS PASS
Which type of genetic disease affects males more frequently than females? - CORRECT
ANSWER Sex-Linked recessive. Since males only have one X and one Y, if the affected
chromosome has the illness, it will be expressed.
In which two conditions are chromosomal abnormalities the leading known cause? - CORRECT
ANSWER Intellectual disability and fetal miscarriage. Chromosome abnormalities are the
leading known cause of intellectual disability and fetal miscarriage.
What are three examples of prenatal diagnostic studies? - CORRECT ANSWER Chorionic
villus sampling (CVS), amniocentesis, and preimplantation genetic testing (PGT) are examples
of prenatal diagnostic studies and are performed in vitro. CVS is a form of genetic testing that
provides genetic information found in utero and is usually performed between weeks 11 and 14
of pregnancy. An amniocentesis is a form of genetic testing that evaluates amniotic fluid and is
usually performed during the second trimester, between weeks 15 and 20 of pregnancy. PGT is
performed on the embryo prior to implantation.
Which genetic disorder is characterized by the presence of a zygote having one chromosome
with a normal complement of genes and one chromosome with a missing gene? - CORRECT
ANSWER Cri du chat syndrome (translated as "cry of the cat") is caused by a DNA deletion.
This term describes the cry often heard from a baby affected by the syndrome. Cri du chat
syndrome can present as a microcephalic, low birth-weight baby with a piercing cry.
How can an X-linked recessive disease skip generations? - CORRECT ANSWER The disease
can be transmitted through female carriers.
Since females have two copies of the X chromosome, the mother may provide an unaffected X
to a daughter or son. Furthermore, a daughter may not show signs of the disease because she has
the other X (the only X the father can give to a female) to cancel it out.
Which type of risk is referred to as the ratio of the disease rate among the entire population to
the disease rate in an unexposed population? - CORRECT ANSWER Relative risk is a ratio of
probability, not an actual occurrence of disease.
What are the empirical risks for most multifactorial diseases based on? - CORRECT ANSWER
Many factors from lifestyle to genetics affect multifactorial diseases. Observation and evaluation
of each case individually provides the most thorough and accurate assessment.
2
AND 100% APPROVED CORRECT
ANSWERS GRADED A+ FIRST CLASS PASS
2025 EXAM
A
+
, PDF: GRADED A+ EXAM
WGU D115 UNIT 2 2025 EXAM QUESTIONS
AND 100% APPROVED CORRECT
ANSWERS GRADED A+ FIRST CLASS PASS
Which type of genetic disease affects males more frequently than females? - CORRECT
ANSWER Sex-Linked recessive. Since males only have one X and one Y, if the affected
chromosome has the illness, it will be expressed.
In which two conditions are chromosomal abnormalities the leading known cause? - CORRECT
ANSWER Intellectual disability and fetal miscarriage. Chromosome abnormalities are the
leading known cause of intellectual disability and fetal miscarriage.
What are three examples of prenatal diagnostic studies? - CORRECT ANSWER Chorionic
villus sampling (CVS), amniocentesis, and preimplantation genetic testing (PGT) are examples
of prenatal diagnostic studies and are performed in vitro. CVS is a form of genetic testing that
provides genetic information found in utero and is usually performed between weeks 11 and 14
of pregnancy. An amniocentesis is a form of genetic testing that evaluates amniotic fluid and is
usually performed during the second trimester, between weeks 15 and 20 of pregnancy. PGT is
performed on the embryo prior to implantation.
Which genetic disorder is characterized by the presence of a zygote having one chromosome
with a normal complement of genes and one chromosome with a missing gene? - CORRECT
ANSWER Cri du chat syndrome (translated as "cry of the cat") is caused by a DNA deletion.
This term describes the cry often heard from a baby affected by the syndrome. Cri du chat
syndrome can present as a microcephalic, low birth-weight baby with a piercing cry.
How can an X-linked recessive disease skip generations? - CORRECT ANSWER The disease
can be transmitted through female carriers.
Since females have two copies of the X chromosome, the mother may provide an unaffected X
to a daughter or son. Furthermore, a daughter may not show signs of the disease because she has
the other X (the only X the father can give to a female) to cancel it out.
Which type of risk is referred to as the ratio of the disease rate among the entire population to
the disease rate in an unexposed population? - CORRECT ANSWER Relative risk is a ratio of
probability, not an actual occurrence of disease.
What are the empirical risks for most multifactorial diseases based on? - CORRECT ANSWER
Many factors from lifestyle to genetics affect multifactorial diseases. Observation and evaluation
of each case individually provides the most thorough and accurate assessment.
2
